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An ultra low power, realtime MPEG2 MP@HL motion estimation processor core with SIMD datapath architecture optimized for gradient descent search algorithm

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13 Author(s)
Miyama, M. ; Fac. of Eng., Kanazawa Univ., Japan ; Tooyama, O. ; Takamatsu, N. ; Kodake, T.
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This paper describes a motion estimation (ME) processor core for realtime, MP@HL video encoding. It is being fabricated with 0.13 μm CMOS technology and contains approximately 7 M-transistors on 4.50 mm × 3.35 mm area. The estimated power consumption is less than 100 mW at 81 MHz and 1.0 V. It features a gradient descent search (GDS) algorithm that drastically reduces the required computation power to 7 GOPS, an optimized SIMD datapath architecture that decreases the clock frequency and the operating voltage, and a low power 3-port data cache SRAM with a write-disturb-free cell array arrangement. The core can be applicable to a portable HDTV codec system.

Published in:

Custom Integrated Circuits Conference, 2002. Proceedings of the IEEE 2002

Date of Conference:

2002

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